11. [-/1 Points] DETAILS MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A cook holds a 1.57-kg carton of milk at arm's length (see the figure below). What force F must be exerted by the biceps muscle? (Ignore the weight of the forearm. Give the magnitude.) N Milk 75.09 -25.0 cm- F 8.00 cm Need Help? Read It Submit Answer 12. [-/1 Points] DETAILS MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A meter stick is found to balance at the 49.7-cm mark when placed on a fulcrum. When a 47.5-gram mass is attached at the 19.5-cm mark, the fulcrum must be moved to the 39.2-cm mark for balance. What is the mass of the meter stick? g